This study compares different adaptation approaches in a P300-based BCI neurofeedback training to improve short-term attention. Participants will spell several words on a computer by focusing on a letter on the screen while their brain activity is recorded (P300 speller). The difficulty of this task will be adapted to train their attention. Their cognitive abilities will be evaluated using a random dot kinematogram, where they are asked to indicate the direction a fraction of moving dots on the computer screen is going in, before and after the training to analyse any improvements. Questionnaires will be used to compare the perceived task load of the different adaptation approaches.
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Change in response times in the random dot motion task
Timeframe: Measured immediately before and after the training block in the experimental session (~1 hour and 30 minutes total)
Change in accuracy in the random dot motion task
Timeframe: Measured immediately before and after the training block in the experimental session (~1 hour and 30 minutes total)
Change in total power of EEG signals
Timeframe: Measured over the course of the training block in the experimental session (~1 hour and 30 minutes total)
Change in alpha power of EEG signals
Timeframe: Measured over the course of the training block in the experimental session (~1 hour and 30 minutes total)
Length of training
Timeframe: Measured over the course of the training block in the experimental session (~1 hour and 30 minutes total)